Trelleborg develops hose for marine transfer of corrosive chemicals

Trelleborg, Sweden – Trelleborg’s fluid handling operation has developed a new hose for applications involving corrosive chemicals and aromatic solvents, the company has announced.

Using technology originating from aircraft and truck tires, Trelleborg has designed the Chemiline hose, which it said could be used for both existing and new offloading arrangements at coastal oil & gas terminals.

Trelleborg said it had effectively bonded fluoroelastomer to the hose structure, which will give the nipple-less, dual-carcass hose high resilience.

According to Trelleborg, the hose has been certified according to GMPHOM2009, which involves extensive fatigue testing on both hose prototypes and materials.

The design of the hose comprises an inner fluoroelastomer liner surrounded by a rubber layer.

Based on proprietary dual-carcass-technology, each hose incorporates a two-part flange with clamped steel cords, designed to withstand long-term stress loading.

The hose is also fitted with a continuous inner liner that protects it from aggressive fluids.

This, said Trelleborg, is in contrast with the common steel nipple designs on the market, which can be quickly corroded by chlorinated solvents or strong acids, for instance.